We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

Kastar

Kastar 4-Pack BT-65Q Battery & AC Wall Charger

SKU CH-YR7T-A8NPA

Four 7.4V 5800mAh lithium-ion batteries and an AC wall charger with foldable flat plug for Topcon survey instruments

  • TypeBattery & Charger
  • Pack1 Charger + 4 Batteries
  • ChemicalLi-Ion
  • Capacity42.92 Wh
  • Dimensions3*2*3 Inch
  • FeaturesFoldable Flat Plug
  • Four 5800 mAh Li-Ion batteries power long survey sessions
  • 92 Wh capacity per cell supports extended field work
  • AC wall charger accepts 100–240 V input for worldwide use
  • Foldable flat plug stores neatly in kit bags
  • LED shows red while charging and green when full

Kastar BT-65Q Li-Ion battery pack

This set supplies four lithium-ion batteries rated at 7.4 volts and 5800 milliampere-hours each, delivering 42.92 watt-hours per cell. They replace Topcon BT-60Q through BT-66Q packs used in GTS-900, GPT-9000 and robotic total stations. Survey crews who need multiple ready spares for long field days will find the quantity convenient.

Suits multi-day survey jobs; not for other voltages

Field teams running Topcon FC-200, FC-2200 or FC-2500 controllers alongside GTS-750, GTS-751 or GPT-7500 instruments can hot-swap these cells without downtime. Buyers whose equipment requires a different voltage or connector should look elsewhere, as the charger output is fixed at 8.4 volts and 600 milliamps.

Wall charger with foldable pins for 100-240 volt

The included AC charger accepts 100 to 240 volts at 50 or 60 hertz, so it works on site power worldwide without a separate adapter. A red LED shows charging and green indicates standby or full charge. The foldable flat plug keeps the unit compact inside a gear case, freeing space for other accessories.

Highlights

  • Four 5800 mAh Li-Ion batteries power long survey sessions
  • 92 Wh capacity per cell supports extended field work
  • AC wall charger accepts 100–240 V input for worldwide use
  • Foldable flat plug stores neatly in kit bags
  • LED shows red while charging and green when full

Specifications

BrandKastar
ModelBT-65Q
Part NumberNOCAR-4B-BT65Q-C
TypeBattery & Charger
Pack1 Charger + 4 Batteries
ChemicalLi-Ion
Capacity42.92 Wh
Dimensions3*2*3 Inch
FeaturesFoldable Flat Plug

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Which Topcon total-station models will the BT-65Q batteries power?

The batteries are compatible with GTS-900, GTS-900A, GPT-9000, GPT-9000A, GPT-7000i, GPT-7500, GTS-750, GTS-751, FC-200, FC-2200 and FC-2500 survey instruments.

Can I charge the new BT-65Q batteries using an original Topcon BC-30 or BC-30D charger?

Yes, the BT-65Q batteries work with the original Topcon BC-30, BC-30D and BT-30 chargers as well as the included Kastar wall charger.

What do the LED colours on the supplied charger mean?

Red means the batteries are charging; green means they are fully charged or the charger is on standby.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.